Atmospheric H2S and SO2 as sulfur source for Brassica juncea and Brassica rapa: impact on the glucosinolate composition.
Atmospheric H2S and SO2 as sulfur source for Brassica juncea and Brassica rapa: impact on the glucosinolate composition.
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DOI：
10.3389/fpls.2015.00924
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发表时间：
2015
影响因子：
5.6
通讯作者：
De Kok LJ
中科院分区：
文献类型：
--
作者：
Aghajanzadeh T;Kopriva S;Hawkesford MJ;Koprivova A;De Kok LJ
以芥菜和B为材料，研究了硫酸盐胁迫和大气H2S、SO2营养对芥菜和B中硫代葡萄糖苷含量和组成的影响。拉帕。这两个物种含有一些脂肪族，芳香族和吲哚芥子油苷。B中硫代葡萄糖苷总含量高5.5倍以上。Juncea比B中的高。rapa，这可能仅仅是由于存在高水平的sinigrin，这是缺乏在后者的物种。硫酸盐剥夺导致两个物种的硫代葡萄糖苷的含量和组合物的改变强烈下降。尽管在叶面吸收和代谢模式的差异，他们的曝光几乎没有影响硫代葡萄糖甙组合物的拍摄，无论是在硫酸盐充足和硫酸盐剥夺的条件。这表明，硫源的差异对硫甙的组成几乎没有影响，硫酸盐、亚硫酸盐和硫化物）。在硫酸盐剥夺，叶吸收的H2S和SO2是唯一的硫源生长，硫代葡萄糖甙组成的根不同于硫酸盐充足的B。juncea和B.尤其是吲哚类芥子油苷的分数低于在硫充足的根中观察到的分数。
The impact of sulfate deprivation and atmospheric H2S and SO2 nutrition on the content and composition of glucosinolates was studied in Brassica juncea and B. rapa. Both species contained a number of aliphatic, aromatic and indolic glucosinolates. The total glucosinolate content was more than 5.5-fold higher in B. juncea than in B. rapa, which could solely be attributed to the presence of high levels of sinigrin, which was absent in the latter species. Sulfate deprivation resulted in a strong decrease in the content and an altered composition of the glucosinolates of both species. Despite the differences in patterns in foliarly uptake and metabolism, their exposure hardly affected the glucosinolate composition of the shoot, both at sulfate-sufficient and sulfate-deprived conditions. This indicated that the glucosinolate composition in the shoot was hardly affected by differences in sulfur source (viz., sulfate, sulfite and sulfide). Upon sulfate deprivation, where foliarly absorbed H2S and SO2 were the sole sulfur source for growth, the glucosinolate composition of roots differed from sulfate-sufficient B. juncea and B. rapa, notably the fraction of the indolic glucosinolates was lower than that observed in sulfur-sufficient roots.